CN115045924B - Electromagnetic clutch and nuclear reactor - Google Patents
Electromagnetic clutch and nuclear reactor Download PDFInfo
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- CN115045924B CN115045924B CN202210676504.XA CN202210676504A CN115045924B CN 115045924 B CN115045924 B CN 115045924B CN 202210676504 A CN202210676504 A CN 202210676504A CN 115045924 B CN115045924 B CN 115045924B
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- Prior art keywords
- locking
- magnetic attraction
- electromagnetic clutch
- shell
- piece
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/02—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings
- F16D27/04—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings with axially-movable friction surfaces
- F16D27/06—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings with axially-movable friction surfaces with friction surfaces arranged within the flux
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/14—Details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Electromagnets (AREA)
Abstract
The embodiment of the application discloses an electromagnetic clutch and a nuclear reactor, relates to the technical field of nuclear reactor engineering, and solves the problem that the electromagnetic clutch in the related art is large in heat productivity when working for a long time. The electromagnetic clutch comprises a shell, a first magnetic attraction piece and a locking mechanism, wherein the shell comprises an upper shell and a lower shell; the first magnetic attraction piece is used for attracting the upper shell and the lower shell when the first magnetic attraction piece is electrified; the locking mechanism is arranged on the shell, when the upper shell and the lower shell are attracted, the relative positions of the locking mechanism and the shell can be changed, so that the upper shell and the lower shell are locked or unlocked, and the locking mechanism locks the upper shell and the lower shell to realize the outage of the first magnetic attraction piece. The electromagnetic clutch is used for transmitting power to a nuclear reactor.
Description
Technical Field
The application relates to the technical field of nuclear reactor engineering, in particular to an electromagnetic clutch and a nuclear reactor.
Background
At present, various electromagnetic clutches, tooth-type, double-winding type, waterproof, return type, unidirectional type and the like exist at home and abroad, and the electromagnetic clutch is widely applied to engineering and life. With the development of small-sized special nuclear reactors, the miniaturization of a driving mechanism and a transmission mechanism for a reactor is particularly involved.
The electromagnetic clutch in the related art works by applying the electromagnetic induction principle and friction force between the inner friction plate and the outer friction plate, when the electromagnetic clutch is in a working state, the electromagnetic coil needs to be electrified continuously, and abnormal heating of the electromagnetic clutch coil can be caused after a long time, so that the working life of the electromagnetic clutch is influenced.
Disclosure of Invention
The embodiment of the application provides an electromagnetic clutch and a nuclear reactor, which solve the problem of large heating value of the electromagnetic clutch in the related art when the electromagnetic clutch works for a long time.
In a first aspect, an embodiment of the application discloses an electromagnetic clutch, which comprises a shell, a first magnetic attraction piece and a locking mechanism, wherein the shell comprises an upper shell and a lower shell; when the first magnetic attraction piece is electrified, the upper shell and the lower shell are attracted; the locking mechanism is arranged on the shell, when the upper shell and the lower shell are attracted, the relative positions of the locking mechanism and the shell can be changed, so that the upper shell and the lower shell are locked or unlocked, and the locking mechanism locks the upper shell and the lower shell to realize the outage of the first magnetic attraction piece.
According to the electromagnetic clutch provided by the embodiment of the application, the locking mechanism is arranged on the shell, when the first magnetic attraction piece is electrified, the upper shell and the lower shell are attracted, and at the moment, the relative positions of the locking mechanism and the shell can be changed, so that the upper shell and the lower shell are locked or unlocked. When the locking mechanism locks the upper shell and the lower shell, at the moment, the first magnetic attraction piece is powered off, and the electromagnetic clutch is still in a working state. And when the locking mechanism fails or fails, the first magnetic attraction piece is electrified again, so that the electromagnetic clutch is still in a working state, the locking mechanism and the first magnetic attraction piece are redundant, and the working reliability of the electromagnetic clutch is improved. That is, the electromagnetic clutch provided by the embodiment of the application solves the problem of large heating value of the electromagnetic clutch in the related art when the electromagnetic clutch works for a long time.
In one implementation of the present application, the locking mechanism includes a locking assembly and a second magnetic attraction member, and when the second magnetic attraction member is energized, the second magnetic attraction member provides a magnetic attraction force to the locking assembly, and the locking assembly is displaceable relative to the housing to lock the upper housing and the lower housing.
According to the electromagnetic clutch provided by the embodiment of the application, the locking component is controlled to generate displacement relative to the shell in a mode of electrifying or de-electrifying the second magnetic attraction piece, so that the reaction time is short, the upper shell and the lower shell are quickly locked or unlocked, and the time is saved.
In one implementation of the present application, the second magnetic attraction member has a power rating less than that of the first magnetic attraction member.
According to the electromagnetic clutch provided by the embodiment of the application, the rated power of the second magnetic attraction piece is smaller than that of the first magnetic attraction piece, and when the first magnetic attraction piece is powered off, the second magnetic attraction piece is powered on, so that the upper shell and the lower shell are quickly locked by the locking assembly, the heating value of the electromagnetic clutch in long-time operation is reduced, and the service life of the electromagnetic clutch is prolonged.
In one implementation manner provided by the application, the locking assembly comprises a buckling piece, a locking piece and a sliding groove, wherein the buckling piece is arranged on the upper shell, the sliding groove is arranged on the lower shell, the buckling piece can extend into the sliding groove, the locking piece is arranged on the lower shell, when the second magnetic attraction piece is electrified, the second magnetic attraction piece provides magnetic attraction force for the locking piece, and the locking piece moves relative to the lower shell so as to enable the locking piece to be clamped on the buckling piece.
According to the electromagnetic clutch provided by the embodiment of the application, the buckling piece is arranged on the upper shell, the locking piece is arranged on the lower shell, when the upper shell and the lower shell are in suction, the buckling piece stretches into the sliding groove arranged on the lower shell, when the second magnetic attraction piece is electrified, the second magnetic attraction piece provides magnetic attraction force for the locking piece, and at the moment, the locking piece is displaced relative to the lower shell, so that the locking piece is ensured to be just clamped on the buckling piece, the reliability of locking the upper shell and the lower shell by the locking component is ensured, and the situation that the locking component is not firm in locking and the electromagnetic clutch cannot work normally is avoided.
In one implementation manner provided by the application, the locking piece comprises a magnetic attraction part and a clamping part, the magnetic attraction part is a permanent magnet, and when the second magnetic attraction part is electrified, the second magnetic attraction part adsorbs the magnetic attraction part, and the clamping part is displaced relative to the lower shell so as to enable the clamping part to be clamped on the buckling piece.
The electromagnetic clutch provided by the embodiment of the application has the advantages that the permanent magnet is an object capable of permanently keeping the magnetism in the magnet stone, and the magnetism of the permanent magnet is not easy to lose and is not easy to magnetize under the normal use condition. The magnetic attraction part is selected as the permanent magnet, so that the phenomenon that the second magnetic attraction part cannot attract is avoided when the second magnetic attraction part adsorbs the magnetic attraction part, the maintenance cost of the locking part is reduced, and the clamping part can be clamped on the buckling part smoothly.
In one implementation manner provided by the application, the locking piece is rotatably connected with the lower shell, the first end of the locking piece is a magnetic attraction part, the second end of the locking piece is a clamping part, a spherical protrusion is arranged on the clamping part, an arc-shaped concave part is arranged on the buckling piece, the spherical protrusion is matched with the arc-shaped concave part, and when the second magnetic attraction piece is electrified, the second magnetic attraction piece adsorbs the magnetic attraction part, and the clamping part is close to the buckling piece, so that the spherical protrusion is clamped on the buckling piece.
According to the electromagnetic clutch provided by the embodiment of the application, the locking piece is rotatably connected with the lower shell, so that the volume of the electromagnetic clutch is reduced. Because the locking piece is rotatably connected with the lower shell, the clamping part is provided with the spherical bulge, the buckling piece is provided with the arc-shaped concave part, the spherical bulge is matched with the arc-shaped concave part, and when the spherical bulge is clamped on the buckling piece, the spherical bulge is always in surface contact with the arc-shaped concave part, so that the reliability of the clamping of the locking piece and the buckling piece is ensured.
In one implementation manner provided by the application, the plurality of locking pieces and the plurality of second magnetic attraction pieces are uniformly distributed along the circumferential direction of the lower shell, and the positions of the locking pieces and the second magnetic attraction pieces are in one-to-one correspondence.
According to the electromagnetic clutch provided by the embodiment of the application, when the upper shell and the lower shell are attracted, the second magnetic attraction piece attracts the locking piece to clamp the locking piece on the buckling piece, if only one locking piece and one second magnetic attraction piece are arranged, whether the acting force of the locking piece clamped on the buckling piece can ensure complete attraction of the upper shell and the lower shell or not can be ensured, therefore, the plurality of locking pieces and the second magnetic attraction pieces are arranged, the plurality of locking pieces and the plurality of magnetic attraction pieces are uniformly distributed along the circumferential direction of the lower shell, and the positions of the locking pieces and the second magnetic attraction pieces are in one-to-one correspondence.
In one implementation manner provided by the application, the locking assembly comprises a first elastic piece, wherein a first end of the first elastic piece is fixed at the bottom of the chute, and a second end of the first elastic piece is abutted against the end part of the buckling piece and is used for providing elastic force for the buckling piece in a direction away from the first elastic piece.
According to the electromagnetic clutch provided by the embodiment of the application, the first elastic piece is arranged in the chute, the first end of the first elastic piece is fixed at the bottom of the chute, the second end of the second elastic piece is abutted against the end part of the buckling piece and is used for providing elastic force for the buckling piece in the direction away from the first elastic piece, when the electromagnetic clutch stops working, the upper shell and the lower shell are separated at the moment, and the elastic piece provided by the first elastic piece overcomes the gravity of the buckling piece and the upper shell so as to separate the lower shell of the upper shell.
In one implementation manner provided by the application, a plurality of locking mechanisms are provided, and the plurality of locking mechanisms are uniformly distributed along the circumferential direction of the shell.
According to the electromagnetic clutch provided by the embodiment of the application, the relative positions of the locking mechanism and the shell can be changed, the upper shell and the lower shell are locked or unlocked by the locking mechanism, and in order to ensure the locking reliability of the locking mechanism, a plurality of locking mechanisms are arranged on the electromagnetic clutch and are uniformly distributed along the circumferential direction of the shell.
In one implementation manner provided by the application, the electromagnetic clutch further comprises a guide assembly, the guide assembly comprises a guide rod and a guide groove, the guide rod is arranged on the upper shell, the guide groove is arranged on the lower shell, and the inner contour of the guide groove is matched with the outer contour of the guide rod so that the guide rod stretches into the guide groove.
The electromagnetic clutch provided by the embodiment of the application has the advantages that the upper shell and the lower shell are attracted in the working process of the electromagnetic separator, but the phenomenon that the upper shell and the lower shell slide or the phenomenon that the attraction positions of the upper shell and the lower shell deviate is also possible to occur, and the electromagnetic clutch further comprises a guide assembly, wherein the guide assembly comprises a guide rod and a guide groove, the guide rod is arranged on the upper shell, the guide groove is arranged on the lower shell, and the inner contour of the guide groove is matched with the outer contour of the guide rod so that the guide rod stretches into the guide groove.
In one implementation manner provided by the application, the guide assemblies are multiple, and the guide assemblies are uniformly distributed along the circumferential direction of the shell.
In one implementation of the present application, the guide assemblies and the locking mechanism are spaced apart along the circumferential direction of the housing.
In one implementation manner provided by the application, the electromagnetic clutch comprises a second elastic member, a first end of the second elastic member is fixed on the upper shell, a second end of the second elastic member is fixed on the lower shell, and the elastic force of the second elastic member enables the upper shell and the lower shell to be relatively far away.
In order to avoid the phenomenon that the elastic force of the first elastic piece is insufficient to overcome the gravity of the upper shell and the buckling piece and the upper shell and the lower shell cannot be separated smoothly, the electromagnetic clutch is further provided with the second elastic piece, the first end of the second elastic piece is fixed on the upper shell, the second end of the second elastic piece is fixed on the lower shell, and the elastic force of the second elastic piece enables the upper shell and the lower shell to be relatively far away.
In a second aspect, embodiments of the present application provide a nuclear reactor comprising a transmission mechanism and an electromagnetic clutch provided in any of the embodiments of the first aspect, the electromagnetic clutch being coupled to the transmission mechanism to transmit power from the electromagnetic clutch to the transmission mechanism.
The nuclear reactor provided by the embodiment of the application has the same technical effect because the electromagnetic clutch provided by any embodiment of the first aspect is included, namely, the nuclear reactor provided by the embodiment of the application solves the problem that the electromagnetic clutch has large heating value when working for a long time in the related technology.
Drawings
Fig. 1 is a schematic structural view of a locking mechanism unlocking an upper housing and a lower housing in an electromagnetic clutch according to an embodiment of the present application when the upper housing and the lower housing are attracted;
fig. 2 is a schematic structural view of a locking mechanism for locking an upper housing and a lower housing in an electromagnetic clutch according to an embodiment of the present application when the upper housing and the lower housing are attracted;
fig. 3 is a schematic structural view of the electromagnetic clutch according to the embodiment of the present application, in which an upper housing and a lower housing are separated;
fig. 4 is a schematic structural view of a locking mechanism and a guiding assembly distributed along a circumferential direction of a housing in an electromagnetic clutch according to an embodiment of the present application.
Reference numerals
1-a housing; 11-an upper housing; 12-a lower housing; 2-a first magnetic attraction piece; 3-a locking mechanism; 31-a second magnetic attraction piece; 32-a locking assembly; 321-fasteners; 3211-an arcuate recess; 322-chute; 323 locking member; 3231-magnetic part; 3232—a clip connection; 32321-spherical bumps; 324-a first elastic member; 4-a guide assembly; 41-a guide bar; 42-a guide groove; 5-a second elastic member; 6-friction pair.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments of the present application and the technical features of the embodiments may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present application and should not be construed as unduly limiting the present application.
In order to make the objects, technical solutions and advantages of the embodiments of the present application more apparent, the specific technical solutions of the present application will be described in further detail below with reference to the accompanying drawings in the embodiments of the present application. The following examples are illustrative of the application and are not intended to limit the scope of the application.
In embodiments of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
Furthermore, in the embodiments of the present application, the terms "upper," "lower," "left," and "right," etc., are defined with respect to the orientation in which the components in the drawings are schematically disposed, and it should be understood that these directional terms are relative terms, which are used for descriptive and clarity with respect to each other, and which may vary accordingly with respect to the orientation in which the components in the drawings are disposed.
In embodiments of the present application, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly, and for example, "connected" may be either a fixed connection, a removable connection, or an integral unit; can be directly connected or indirectly connected through an intermediate medium.
In embodiments of the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In embodiments of the application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment of the present application is not to be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
The clutch is a device similar to a switch, a combination or disconnection power transmission function, the driving part and the driven part of the clutch mechanism can be temporarily separated and can be gradually engaged, and relative rotation is also possible in the transmission process, and the clutch is divided into four types of electromagnetic clutch, magnetic powder clutch, friction clutch and hydraulic clutch.
The electromagnetic clutch is a component which applies the electromagnetic induction principle and the friction force between the inner friction plate and the outer friction plate to enable two rotary motions in the mechanical transmission system, and the driven component can be connected with the electromagnetic clutch which is combined or separated under the condition that the driving component does not stop rotating, so that the electromagnetic clutch is an automatically executed electric appliance, and the electromagnetic clutch can control the starting, reversing, speed regulation, braking and the like of the mechanical transmission system. The electromagnetic clutch has the advantages of simple structure, quick action, small control energy, quick and stable braking, small volume and capability of transmitting larger torque, so that the electromagnetic clutch is widely applied to various processing machine tools and mechanical transmission systems.
The embodiment of the application provides a nuclear reactor, which is also called an atomic energy reactor or a reactor, and is a device for realizing nuclear energy utilization by maintaining a controllable and self-sustaining chained nuclear fission reaction. A drive mechanism or transmission mechanism is disposed within the nuclear reactor. Taking a transmission mechanism as an example, the nuclear reactor provided by the embodiment of the application comprises the transmission mechanism and an electromagnetic clutch, wherein the electromagnetic clutch is connected with a driving part and a driven part of the transmission mechanism so as to transmit the power of the driving part of the transmission mechanism to the driven part through the electromagnetic clutch.
The embodiment of the application also provides an electromagnetic clutch, as shown in fig. 1 and 2, comprising a shell 1, a first magnetic attraction piece 2 and a locking mechanism 3, wherein the shell 1 comprises an upper shell 11 and a lower shell 12; when the first magnetic attraction member 2 is energized, to attract the upper case 11 and the lower case 12; the locking mechanism 3 is arranged on the shell 1, when the upper shell 11 and the lower shell 12 are attracted, the relative positions of the locking mechanism 3 and the shell 1 can be changed, so that the upper shell 11 and the lower shell 12 are locked or unlocked, and the locking mechanism 3 locks the upper shell 11 and the lower shell 12, so that the first magnetic attraction piece 2 is powered off.
It should be noted that, the electromagnetic clutch provided by the application is not limited to be applied in a nuclear reactor, but can also be applied to a mechanical transmission system, and the embodiment of the application only provides a scene that the electromagnetic clutch is applied in the nuclear reactor.
Referring to fig. 3, it can be seen from the above description that when the electromagnetic clutch is applied to a nuclear reactor, the electromagnetic clutch should have the characteristics of high temperature resistance, irradiation resistance, small volume, low heat generation, and the like. For this reason, the shell 1 should be made of a material with high temperature resistance and irradiation resistance, such as 316 stainless steel, which is a short term for stainless acid-resistant steel, and 316 stainless steel has molybdenum element, has the characteristics of atmospheric corrosion resistance and high temperature resistance, and is suitable for being used in nuclear reactors. In order to prevent the upper housing 11 and the lower housing 12 from sliding relatively during suction, a friction pair 6 is further arranged on the lower housing 12, and the friction pair 6 should be made of a high-temperature friction material. The first magnetic attraction piece 2 can also be 300-grade electromagnetic wire with high temperature resistance and irradiation resistance and corresponding insulating paint. The locking mechanism 3 is also made of high-temperature resistant metal materials.
Referring to fig. 2 and 4, on the basis that the relative positions of the locking mechanism 3 and the housing 1 can be changed, the locking mechanism 3 locks or unlocks the upper housing 11 and the lower housing 12, and in order to ensure the locking reliability of the locking mechanism 3, a plurality of locking mechanisms 3 are provided on the electromagnetic clutch, and the plurality of locking mechanisms 3 are uniformly distributed along the circumferential direction of the housing.
With reference to fig. 2, it should be specifically noted that the locking mechanism includes a locking assembly 32 and a power member, and the power member may be any power-providing element, such as a gear drive, a belt drive, etc., and the electromagnetic clutch should also have a miniaturized characteristic due to the gradual miniaturization of the special nuclear reactor, especially the miniaturization of the driving mechanism or the transmission mechanism in the stack, and the gear drive needs to be provided with a driving gear and a driven gear on the housing; the belt transmission needs to be provided with a driving wheel, a driven wheel, a synchronous belt and other parts on the shell, so that the volume of the locking mechanism 3 is overlarge, and the weight of the electromagnetic clutch is increased. In order to meet the miniaturization requirement of the electromagnetic clutch, the power member is selected as the second magnetic member 31 in conformity with the first magnetic member 2, and therefore, the locking mechanism 3 includes the locking assembly 32 and the second magnetic member 31, when the second magnetic member 31 is energized, the second magnetic member 31 provides magnetic attraction force to the locking assembly 32, and the locking assembly 32 is displaceable relative to the housing 1 to lock the upper housing 11 and the lower housing 12. The locking component 32 can generate displacement relative to the shell 1 by controlling the way of electrifying or de-electrifying the second magnetic attraction piece 31, so that the reaction time is short, the upper shell 11 and the lower shell 12 are quickly locked or unlocked, and the time is saved.
As shown in fig. 2, further, the rated power of the second magnetic attraction piece 31 is smaller than that of the first magnetic attraction piece 2, when the first magnetic attraction piece 2 is powered off, the second magnetic attraction piece 31 is powered on, so that the locking component 32 locks the upper shell 11 and the lower shell 12 quickly, the heating value of the electromagnetic clutch during long-time running is reduced, the service life of the electromagnetic clutch is prolonged, of course, the second magnetic attraction piece 31 also needs to satisfy the characteristics of radiation resistance and high temperature resistance, the second magnetic attraction piece 31 can be made of the same material as the first magnetic attraction piece 2, such as 300-level high temperature radiation resistant electromagnetic wire and corresponding insulating paint, and the second magnetic attraction piece 31 can be made of a material different from the first magnetic attraction piece 2.
Referring to fig. 1, 2 and 3, further, when the power member is the second magnetic attraction member 31, the first magnetic attraction member 2 is electrified to attract the upper housing 11 and the lower housing 12 when the electromagnetic clutch is operated, the second magnetic attraction member 31 is electrified when the upper housing 11 and the lower housing 12 are attracted, the locking assembly 32 is displaced relative to the housing 1 to lock the upper housing 11 and the lower housing 12, at this time, the first magnetic attraction member 2 is powered off, only the second magnetic attraction member 31 is electrified during the operation of the electromagnetic clutch, and the rated power of the second magnetic attraction member 31 is smaller than the rated power of the first magnetic attraction member 2. At this time, the power consumption is lower, and the first magnetic attraction member 2 has no power consumption, so that the heating value of the electromagnetic clutch which runs for a long time is reduced. And when the locking component 32 fails, the first magnetic attraction piece 2 can be continuously electrified, the first magnetic attraction piece 2 and the second magnetic attraction piece 31-locking component 32 are redundant, and if one of the first magnetic attraction piece 2 and the second magnetic attraction piece 31-locking component 32 fails, the other one can ensure the normal operation of the clutch. When the electromagnetic clutch stops operating, the second magnetic attraction member 31 is deenergized to unlock the upper housing 11 and the lower housing 12.
In some embodiments provided in the present application, referring to fig. 1 and 2, the locking assembly 32 may be integrally designed or separately designed, when the locking assembly 32 is integrally designed, the locking assembly 32 may be a clamping groove adapted to the outer contour of the housing 1, and when the second magnetic member is energized, the locking assembly 32 approaches the housing 1 so that the clamping groove is adapted to the outer contour of the housing 1 to lock the upper housing 11 and the lower housing 12. When the second magnetic attraction piece 31 is powered off, the locking assembly 32 is away from the shell 1, and the clamping groove is separated from the outer contour of the shell 1, so that the upper shell 11 and the lower shell 12 are unlocked. Of course, while locking assembly 32 is integrally designed, locking assembly 32 may have other configurations. When the locking component 32 is of a split design, in one implementation of the present application, the locking component 32 includes a fastener 321, a locking piece 323 and a chute 322, where the fastener 321 is disposed on the upper housing 11, the chute 322 is disposed on the lower housing 12, the fastener 321 may extend into the chute 322, the locking piece 323 is disposed on the lower housing 12, and when the second magnetic attraction piece 31 is energized, the second magnetic attraction piece 31 provides magnetic attraction force to the locking piece 323, and the locking piece 323 is displaced relative to the lower housing 12, so that the locking piece 323 is clamped on the fastener 321. Thus, the locking piece 323 is ensured to be just clamped on the buckling piece 321, the reliability of the locking assembly 32 for locking the upper shell 11 and the lower shell 12 is ensured, the situation that the locking assembly 32 is not firm and the electromagnetic clutch cannot work normally is avoided, and the locking assembly 32 can be of other structures, so that the application is not limited.
As shown in fig. 1 and 2, when the second magnetic attraction member 31 is energized, the second magnetic attraction member 31 provides a magnetic attraction force to the locking member 323, and the locking member 323 is displaced relative to the lower case 12, so that the locking member 323 is clamped on the fastening member 321, and therefore, the locking member 323 should be divided into a magnetic attraction portion 3231 and a clamping portion 3232, the second magnetic attraction member 31 should directly adsorb the magnetic attraction portion 3231, and the clamping portion 3232 is displaced relative to the lower case 12, so that the clamping portion 3232 is clamped on the fastening member 321. When the second magnetic attraction member 31 is energized, the second magnetic attraction member 31 generates an electromagnetic field, and the electromagnetic field generates an electromagnetic force to directly attract the magnetic attraction portion 3231, so that the attraction portion should be made of a material having a magnetic material. Such as a magnet, a magnetic conductive member, etc., wherein the magnet is composed of iron, cobalt, nickel, etc., and the inner structure of the atoms is relatively special, and the magnet itself has magnetic moment, and the magnet can generate magnetic field, and has the characteristic of attracting ferromagnetic substances, such as iron, cobalt, nickel, etc. Therefore, the magnetic conductive member may be a metal having elements such as iron, cobalt, and nickel.
Referring to fig. 1 and 2, the magnets are further divided into permanent magnets and non-permanent magnets, wherein the natural products of the permanent magnet stones, also called natural magnets, can be manufactured by manpower, and the non-permanent magnets, such as the first magnetic attraction member 2, the second magnetic attraction member 31, the electromagnet, etc., can only generate magnetism under certain conditions. Because the permanent magnet is an object capable of permanently keeping the magnetism in the magnetite, and under the normal use condition, the magnetism of the permanent magnet is not easy to lose and is not easy to magnetize. The magnetic attraction part 3231 is selected as a permanent magnet, so that the phenomenon that the second magnetic attraction part 31 can not attract the magnetic attraction part 3231 due to the disappearance of magnetism of the attraction part is avoided, the maintenance cost of the locking part 323 is reduced, and the clamping part 3232 can be clamped on the buckling part 321 smoothly is ensured.
As shown in fig. 1 and 2, it should be additionally noted that the locking member 323 is displaced with respect to the lower case 12 to lock or unlock the upper case 11 and the lower case 12. At this time, the lock 323 may be linearly displaced with respect to the lower case 12, and the lock 323 may be curvilinearly displaced with respect to the lower case 12. When the locking piece 323 is displaced in a curve relative to the lower housing 12, the locking piece 323 is rotatably connected with the lower housing 12, reducing the volume of the electromagnetic clutch. The first end of the locking member 323 is a magnetic attraction portion 3231, the second end of the locking member 323 is a clamping portion 3232, and the lower housing 12 may be connected to the middle transition section of the clamping portion 3232 and the magnetic attraction portion 3231, may be connected to the clamping portion 3232, and may be connected to the magnetic attraction portion 3231.
Referring to fig. 1 and 2, the locking portion 3232 is locked to the fastener 321 to lock the upper housing 11 and the lower housing 12, and in order to increase the contact area between the locking portion 3232 and the fastener 321, a protrusion is disposed on the locking portion 3232, and a recess is disposed on the fastener 321, and the protrusion is adapted to the recess so that the protrusion is locked in the recess. The protrusions may be regular shapes such as rectangular parallelepiped, square, or spherical, or irregular shapes. In order to facilitate processing and manufacturing, the shape of the bulge can be a cuboid, a cube or a sphere and other regular shapes. When the protrusion is rectangular, the corresponding recess should also be rectangular, and due to the different sizes of the six faces of the rectangular, and the corners between the six faces are provided, at this time, the protrusion should be completely adapted to the recess, and the rotation angle of the locking member 323 relative to the lower housing 12 needs to be precisely controlled, and when the working time of the electromagnetic clutch is too long, the accuracy is reduced, at this time, the protrusion may have point contact or line contact with the recess, and it is difficult to ensure the reliability of the locking member 323 and the buckling member 321. For this reason, the shape of the protrusion is spherical, and correspondingly, the recess is also arc-shaped, and when the spherical protrusion 32321 is clamped on the fastener 321, the spherical protrusion 32321 is always in surface contact with the arc-shaped recess 3211, so that the reliability of locking the locking member 323 and the fastener 321 is ensured.
On the basis, as shown in fig. 2, when the upper shell 11 and the lower shell 12 are attracted, the second magnetic attraction piece 31 attracts the locking piece 323 to clamp the locking piece 323 on the buckling piece 321, if only one locking piece 323 and one second magnetic attraction piece 31 are arranged, whether the acting force of the locking piece 323 clamped on the buckling piece 321 can ensure the complete attraction of the upper shell 11 and the lower shell 12 or not can be ensured, therefore, a plurality of locking pieces 323 and the second magnetic attraction pieces 31 are arranged, the plurality of locking pieces 323 and the plurality of magnetic attraction pieces are uniformly distributed along the circumferential direction of the lower shell 12, and the positions of the locking pieces 323 and the positions of the second magnetic attraction pieces 31 are in one-to-one correspondence.
Referring to fig. 1 and 2, in some other embodiments of the present application, the locking assembly 32 includes a first elastic member 324, wherein the first elastic member 324 is disposed in the chute 322, a first end of the first elastic member 324 is fixed at the bottom of the chute 322, and a second end of the second elastic member 5 abuts against an end of the buckling member 321, so as to provide an elastic force to the buckling member 321 in a direction away from the first elastic member 324, and when the electromagnetic clutch is deactivated, the upper housing 11 and the lower housing 12 are separated at this time, and the elastic member provided by the first elastic member 324 overcomes the gravity of the buckling member 321 and the upper housing 11, so as to separate the lower housing 12 of the upper housing 11.
Referring to fig. 3, in order to avoid the phenomenon that the elastic force of the first elastic member 324 is insufficient to overcome the gravity of the upper housing 11 and the fastening member 321, and the upper housing 11 and the lower housing 12 cannot be smoothly separated, the electromagnetic clutch is further provided with a second elastic member 5, wherein a first end of the second elastic member 5 is fixed on the upper housing 11, a second end of the second elastic member 5 is fixed on the lower housing 12, and the elastic force of the second elastic member 5 is used to relatively separate the upper housing 11 and the lower housing 12. It should be noted that, the first elastic member 324 and the second elastic member 5 are elastic members that provide elastic force, the first elastic member 324 and the second elastic member 5 may be springs, wave springs, and the like, and the types of the first elastic member 324 and the second elastic member 5 may be the same or different. Illustratively, the first resilient member 324 and the second resilient member 5 selected in the present application are springs.
In other embodiments provided by the application, referring to fig. 2 and 3, the electromagnetic separator is attracted to the upper shell 11 and the lower shell 12 in the working process, but the phenomenon of relative sliding between the upper shell 11 and the lower shell 12 or the phenomenon of deviation of the positions of the upper shell 11 and the lower shell 12 may also occur, although the friction pair 6 is arranged between the upper shell 11 and the lower shell 12, the friction pair 6 is made of a high-temperature friction material, and the relative sliding force between the upper shell 11 and the lower shell 12 is overcome by the friction force, so as to further promote the complete attraction of the upper shell 11 and the lower shell 12, and completely avoid the occurrence of the relative sliding phenomenon between the upper shell 11 and the lower shell 12. For this purpose, the electromagnetic clutch further comprises a guide assembly 4, the guide assembly 4 comprising a guide bar 41 and a guide groove 42, the guide bar 41 being provided on the upper housing 11, the guide groove 42 being provided on the lower housing 12, the inner contour of the guide groove 42 being adapted to the outer contour of the guide bar 41 such that the guide bar 41 extends into the guide groove 42. The guide bar 41 and the guide groove 42 may have any shape, and may have a regular shape such as a rectangular parallelepiped, a square, a cylinder, or an irregular shape. For ease of manufacturing and for cost savings, the guide bar 41 and guide slot 42 are generally selected to be regular in shape, and in some embodiments, the guide bar 41 and guide slot 42 are cylindrical. Of course, the guide assemblies 4 are plural, and the plural guide assemblies 4 are uniformly distributed along the circumferential direction of the housing 1. The complete suction of the upper housing 11 and the lower housing 12 can be further promoted, the balance of the holding force can be completely avoided, and the occurrence of the relative sliding phenomenon between the upper housing 11 and the lower housing 12 can be completely avoided.
As shown in fig. 3 and 4, it should be noted that the plurality of guide assemblies 4 are uniformly distributed along the circumferential direction of the housing, and the plurality of guide assemblies 4 may be disposed in the circumferential direction of the housing 1 in a single row or in a plurality of rows. The guide assemblies 4 and the locking mechanisms 3 are arranged in the circumferential direction of the shell 1, the guide assemblies 4 can be distributed at intervals with the locking mechanisms 3, the guide assemblies 4 can also be symmetrically distributed with the locking mechanisms 3, and in some embodiments of the application, the guide assemblies 4 and the locking mechanisms 3 are distributed at intervals along the circumferential direction of the shell 1, so that the application is not limited.
The above description is not intended to limit the scope of the application, but is intended to cover any modifications, equivalents, and improvements within the spirit and principles of the application.
Claims (12)
1. An electromagnetic clutch, comprising:
a housing including an upper housing and a lower housing;
a first magnetic attraction member that attracts the upper case and the lower case when the first magnetic attraction member is energized;
the locking mechanism is arranged on the shell, when the upper shell and the lower shell are attracted, the relative positions of the locking mechanism and the shell can be changed, so that the upper shell and the lower shell are locked or unlocked, and the locking mechanism locks the upper shell and the lower shell to realize the power failure of the first magnetic attraction piece;
the locking mechanism comprises a locking component and a second magnetic attraction piece, when the second magnetic attraction piece is electrified, the second magnetic attraction piece provides magnetic attraction force for the locking component, and the locking component can generate displacement relative to the shell so as to lock the upper shell and the lower shell;
the locking assembly comprises a buckling piece, a locking piece and a sliding groove, wherein the buckling piece is arranged on the upper shell, the sliding groove is formed in the lower shell, the buckling piece can extend into the sliding groove, the locking piece is arranged on the lower shell, when the second magnetic attraction piece is electrified, the second magnetic attraction piece provides magnetic attraction force for the locking piece, and the locking piece moves relative to the lower shell so that the locking piece is clamped on the buckling piece.
2. The electromagnetic clutch of claim 1 wherein the second magnetically attractable member has a power rating less than a power rating of the first magnetically attractable member.
3. The electromagnetic clutch according to claim 1, wherein the locking member includes a magnetic attraction portion and a clamping portion, the magnetic attraction portion is a permanent magnet, the second magnetic attraction member attracts the magnetic attraction portion when the second magnetic attraction member is energized, and the clamping portion is displaced relative to the lower housing so that the clamping portion is clamped on the buckling member.
4. The electromagnetic clutch according to claim 3, wherein the locking member is rotatably connected to the lower housing, the first end of the locking member is the magnetic attraction portion, the second end of the locking member is the locking portion, a spherical protrusion is provided on the locking portion, an arc-shaped recess is provided on the locking member, the spherical protrusion is adapted to the arc-shaped recess, when the second magnetic attraction member is energized, the second magnetic attraction member attracts the magnetic attraction portion, and the locking portion is close to the locking member, so that the spherical protrusion is locked on the locking member.
5. The electromagnetic clutch according to claim 1, wherein the plurality of locking pieces and the plurality of second magnetic pieces are uniformly distributed along the circumferential direction of the lower housing, and the positions of the locking pieces and the second magnetic pieces are in one-to-one correspondence.
6. The electromagnetic clutch of claim 1, wherein the locking assembly comprises a first resilient member having a first end secured to the bottom of the chute and a second end abutting an end of the clasp for providing a resilient force to the clasp in a direction away from the first resilient member.
7. The electromagnetic clutch of claim 1, wherein the plurality of locking mechanisms is uniformly distributed along a circumferential direction of the housing.
8. The electromagnetic clutch of claim 2, further comprising a guide assembly including a guide bar disposed on the upper housing and a guide slot disposed on the lower housing, an inner profile of the guide slot adapted to an outer profile of the guide bar such that the guide bar extends into the guide slot.
9. The electromagnetic clutch of claim 8, wherein the plurality of guide assemblies are uniformly distributed along the circumference of the housing.
10. The electromagnetic clutch of claim 9, wherein the guide assembly is spaced apart from the locking mechanism along a circumferential direction of the housing.
11. The electromagnetic clutch according to any one of claims 1 to 10, comprising a second elastic member, a first end of the second elastic member being fixed to the upper housing, a second end of the second elastic member being fixed to the lower housing, and an elastic force of the second elastic member being such that the upper housing and the lower housing are relatively apart.
12. A nuclear reactor, comprising:
a transmission mechanism;
the electromagnetic clutch according to any one of claims 1 to 11, being connected to the transmission mechanism to transmit power of the electromagnetic clutch to the transmission mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210676504.XA CN115045924B (en) | 2022-06-15 | 2022-06-15 | Electromagnetic clutch and nuclear reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210676504.XA CN115045924B (en) | 2022-06-15 | 2022-06-15 | Electromagnetic clutch and nuclear reactor |
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| CN115045924A CN115045924A (en) | 2022-09-13 |
| CN115045924B true CN115045924B (en) | 2023-08-18 |
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| CN113628768A (en) * | 2021-07-22 | 2021-11-09 | 中国原子能科学研究院 | Electromagnetic locking mechanism and reactor movement equipment |
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| JPH01223277A (en) * | 1988-02-29 | 1989-09-06 | Kokusan Kinzoku Kogyo Co Ltd | Electric lock for hinged door |
| JP2007179841A (en) * | 2005-12-27 | 2007-07-12 | Toshiba Corp | Vacuum circuit breaker |
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|---|---|
| CN115045924A (en) | 2022-09-13 |
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